A$.$ Idealize the structure shown below.

B$.$Draw the internal shear and internal moment diagrams.

C$.$Determine the internal shear and moment functions within the two segments of the beam as a function of x$1$ and x$2$ whose origins are shown below.

D$.$ Sketch the deformed shape of the beam informed by bending moment diagrams, support conditions, and other constraints.

Observe that the connection at A is fixed such that no rotation or translation in x$,$y$,$z is possible. Explain ypur work.